Here’s how:
Power on your TV andFire TV machine.
Put fresh batteries in your Alexa voice remote.
The Fire TV will detect the remote and pair automatically.

Here’s how:
bring up the Alexa app and tapMore(three lines on the bottom right).
Tap theplus sign(+) to select Fire TV.
TapLink Your Alexa equipment.

You’ll be able to turn your TV on or off via Alexa voice commands if it has theHDMI-CECfeature.
Check your documentation to find out.
A number of manufacturers have developed TVs with the designation “Works With Alexa.”

Check your rig manual to see if your TV has this capability.
Here’s how to set up some popular “Works With Alexa” TVs to start using voice commands.
From your LG TV remote control, press theHomebutton.

LaunchSet-Up TV for Amazon Alexa App.
From the Alexa app, tapMore(three lines).
From the Search field, enterLG ThinQ.

Sign in to your LG account.
From the Alexa app home page, tapDevices > Add equipment, and add your LG TV.
You’re ready to start using voice commands with your LG TV.
Link your TV with Alexa, and use a nearby Echo to issue voice commands.
Select yourGoogle account(or create one) and name your TV.
Vizio TVs
Select Vizio TV models are categorized as “Works With Alexa” devices.
Link your TV with Alexa, and use a nearby Echo to issue voice commands.
Here’s how to get started:
Tun on the TV and launch the Vizio TV SmartCast home screen.
Select theExtrastab on the menu bar.
SelectVoice options>Pair Display.
Using your smartphone, go todms.vizio.com/alexaand enter the PIN shown your TV screen.
Return to the Alexa app on your phone when prompted and turn on the Vizio SmartCast skill.
Here’s how to get started:
Set upyour Logitech Harmony Remote.
From the Alexa app, go toMenu > Skills & Gamesand search forHarmony.
verify you have an Alexa-enabled gadget, such as an Echo, up and running.
On your remote, tap the blueHarmony iconand then tapEnable to Use.
When you’re finished setting up your preferences, tapLink account > Discover devices.
it’s possible for you to now control your media devices with Alexa commands.
Browse content, control playback, or change the volume without ever using the Roku remote.
Search for Roku, and then select theRoku Smart Homeicon.
jump in to your Roku account and go for the devices you want to control with Alexa.
Back in the Alexa app, Alexa will search for available devices.
When it finds your Roku rig, select it, and tapContinue.
Choose your gadget and then selectLink Devices.